ESS1.B: Earth and the Solar System (9-12) The solar system appears to have formed from a disk of dust and gas, drawn together by gravity. Kepler’s laws describe common features of the motions of ...

TIMHi, I'm Tim Peake. I'm an astronaut based here at the European Space Agency in Germany, and from December 2015, to June 2016, I spent six months orbiting Earth on the International Space Station.